Altera JESD204B IP User Manual Page 105

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Figure 5-8: TX Error Reporting
The jesd204_tx_data_valid signal deasserts for one frame_clk and cannot be sampled by the link_clk.
txframe_clk
txlink_clk
jesd204_tx_data_valid
jesd204_tx_data_ready
jesd204_tx_link_data_valid
jesd204_tx_link_error
TX Latency
Table 5-10: TX Latency Associated with Different F and FRAMECLK_DIV Settings.
F FRAMECLK_DIV TX Latency
1 1 3 txframe_clk period.
Maximum 5 txframe_clk period for byte 3
Minimum 2 txframe_clk period for byte 0
1 4 1 txframe_clk period
2 1 3 txframe_clk period.
Maximum 4 txframe_clk period for byte 2 and byte 3
Minimum 3 txframe_clk period for byte 0 and byte 1
2 2 1 txframe_clk period
4 1 txframe_clk period
8 1 txframe_clk period
RX Path
The deassembler in the RX path consists of the tail bits dropping, deassembling, and multiplexing blocks.
5-24
TX Latency
UG-01142
2015.05.04
Altera Corporation
JESD204B IP Core Design Guidelines
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